简算:6.75+6.75*7.6+1.4*6.75

问题描述:

简算:6.75+6.75*7.6+1.4*6.75

6.75+6.75×7.6+1.4×6.75=6.75×1+6.75×7.6+1.4×6.75=6.75×(1+7.6+1.4) =6.75×10=67.5